Web Forms :: String Value In The Column Of Datatable?

Jan 27, 2010

I have string value in the column of datatable.I would like to assign seq no to different value.if they have the same value, I would like to assign the same seq no.if there isn't has the value in the column, then assign a new seq no.how to do this?for example:

district no. district

1 hong kong
2 germary
3 canada
1 hong kong

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